diff -u b/core/modules/node/lib/Drupal/node/Tests/Condition/NodeConditionTest.php b/core/modules/node/lib/Drupal/node/Tests/Condition/NodeConditionTest.php
--- b/core/modules/node/lib/Drupal/node/Tests/Condition/NodeConditionTest.php
+++ b/core/modules/node/lib/Drupal/node/Tests/Condition/NodeConditionTest.php
@@ -14,7 +14,7 @@
  */
 class NodeConditionTest extends DrupalUnitTestBase {
 
-  public static $modules = array('system', 'node', 'field', 'text');
+  public static $modules = array('system', 'node', 'field', 'filter', 'text');
 
   public static function getInfo() {
     return array(
diff -u b/core/modules/system/lib/Drupal/system/Tests/Plugin/ContextPluginTest.php b/core/modules/system/lib/Drupal/system/Tests/Plugin/ContextPluginTest.php
--- b/core/modules/system/lib/Drupal/system/Tests/Plugin/ContextPluginTest.php
+++ b/core/modules/system/lib/Drupal/system/Tests/Plugin/ContextPluginTest.php
@@ -17,7 +17,7 @@
  */
 class ContextPluginTest extends DrupalUnitTestBase {
 
-  public static $modules = array('system', 'user', 'node', 'text');
+  public static $modules = array('system', 'user', 'node', 'filter', 'text');
 
   public static function getInfo() {
     return array(
only in patch2:
unchanged:
--- a/core/lib/Drupal/Core/Validation/Plugin/Validation/Constraint/AllowedValuesConstraintValidator.php
+++ b/core/lib/Drupal/Core/Validation/Plugin/Validation/Constraint/AllowedValuesConstraintValidator.php
@@ -20,6 +20,9 @@ class AllowedValuesConstraintValidator extends ChoiceValidator {
    * {@inheritdoc}
    */
   public function validate($value, Constraint $constraint) {
+    if (!isset($value)) {
+      return;
+    }
     if ($this->context->getMetadata()->getTypedData() instanceof AllowedValuesInterface) {
       $account = \Drupal::currentUser();
       $allowed_values = $this->context->getMetadata()->getTypedData()->getSettableValues($account);